Results 11 to 20 of about 1,317,495 (382)
Deep Reinforcement Learning-Based Path Control and Optimization for Unmanned Ships
Wireless Communications and Mobile Computing, 2022 Unmanned ship navigates on the water in an autonomous or semiautonomous way, which can be widely used in maritime transportation, intelligence collection, maritime training and testing, reconnaissance, and evidence collection.
Dingwei Wu +4 more
semanticscholar +1 more source
Preparation of flower-like hydrogel and its application in sea water desalination [PDF]
E3S Web of Conferences, 2023 The situation of global water crisis is becoming more and more serious[1]. Due to the inconvenience of fresh water carrying or long-term storage and deterioration, the personnel and equipment of oceangoing ships are in urgent need of fresh water ...
Fang Jingkang +3 more
doaj +1 more source
Public Health Responses to COVID-19 Outbreaks on Cruise Ships — Worldwide, February–March 2020
MMWR. Morbidity and mortality weekly report, 2020 An estimated 30 million passengers are transported on 272 cruise ships worldwide each year* (1). Cruise ships bring diverse populations into proximity for many days, facilitating transmission of respiratory illness (2).
Leah F Moriarty +113 more
semanticscholar +1 more source
한국해양공학회지, 2022 Recently, as the offshore structures are operated in the deep-sea oil fields, interest in the analysis of relative wave elevation around platforms is increased.
Hyun-Seung Nam +3 more
doaj +1 more source
Path Planning of Coastal Ships Based on Optimized DQN Reward Function
Journal of Marine Science and Engineering, 2021 Path planning is a key issue in the field of coastal ships, and it is also the core foundation of ship intelligent development. In order to better realize the ship path planning in the process of navigation, this paper proposes a coastal ship path ...
Siyu Guo +4 more
semanticscholar +1 more source
Underwater Navigation of AUVs Using Uncorrelated Measurement Error Model of USBL
한국해양공학회지, 2022 This article presents a modeling method for the uncorrelated measurement error of the ultra-short baseline (USBL) acoustic positioning system for aiding navigation of underwater vehicles. The Mahalanobis distance (MD) and principal component analysis are
Pan-Mook Lee +6 more
doaj +1 more source
Sensors and AI Techniques for Situational Awareness in Autonomous Ships: A Review
IEEE transactions on intelligent transportation systems (Print), 2020 Autonomous ships are expected to improve the level of safety and efficiency in future maritime navigation. Such vessels need perception for two purposes: to perform autonomous situational awareness and to monitor the integrity of the sensor system itself.
S. Thombre +10 more
semanticscholar +1 more source
한국해양공학회지, 2020 In this study, heading characteristics and heading control performances were evaluated to achieve the wave shield effect. The wave shield effect originating from heading control reduces the relative motions of moored vessels in a floating liquefied ...
Seunghoon Oh +9 more
doaj +1 more source
Lignocellulose based hydrogel sponge for cost-effective seawater desalination [PDF]
E3S Web of Conferences, 2023 Currently, freshwater scarcity is becoming an increasingly pressing issue worldwide. Solar desalination technology is recognized as a promising solution to this problem. However, the existing seawater desalination evaporators suffer from slow evaporation
Cao Yan, Xu Guangying, Chen Yan
doaj +1 more source
A Feasibility Review for an Uneven Baseline Basis Minimal Ballast Ship
한국해양공학회지, 2020 Although there are many kinds of advanced ballast water management systems, pioneering studies for ballast-water free ship and minimal ballast water ship concepts are in progress. In this study, the existing alternatives of ballast water are reviewed and
Hee Jin Kang +5 more
doaj +1 more source